AEROSOL INHALATION DEVICE

摘要

A pocket size, two-part aerosol inhalation device (10) wherein a medicament canister housing (14) formed of plastic is telescopically received in a plastic expansion chamber (12) having an elliptical cross section in a storage mode of the device and wherein the canister housing is connected to the expansion chamber by pin-and slot means (38, 40) whereby it is first slidable into a fully extended position relative to the expansion chamber after which it may be pivoted relative thereto into an angular operable position in which a spray orifice (58) provided therein is aligned axially with the axis of the expansion chamber whereby medicament released from the canister leaves the spray orifice with a vortex movement which slows down the aerosolized medicament sufficiently that the percentage thereof reaching the deepest portion of the lungs is maximized and the percentage thereof which merely impacts against the back of the throat is minimized.